Nut-lock.



G. HARDIN.

NUT LOCK. APPLICATION FILED JULY 16. 1907.

91 0,678. Patented Jan. 26,- 1909.

. 1 Z a j avwentoz ai ye 223674222 wit" one:

GEORGE HARDIN, OF UNIOPOLIS, OHIO.

, NUT-LOCK.

Specification of Letters Patent.

Patented Jan. 26, 1909.

Application filed July 16, 1907. Serial No. 384,005.

To all whom it may concern:

Be it known that I, GEORGE EAR-DIN, a citizen of the United States,residing at Uniopolis, in the county of Auglaize and State of Ohio, haveinvented new and useful Imrovements in Nut-Locks, of which the folowingis a specification.

This invention relates to nut locks, the principal object of the samebeing to rovide a nut in which the bolt opening theret rough is threadedpartially throu h said opening, the remaining portion of sai openingserving to frictionally lock'said nut upon the unthreaded portion of thebolt.

Another object of the invention is to provide a nut lock in which thebolt may be of the ordinary construction and in which the nut isprovided with means for frictionally engaging the body of the bolt.

lhese and other objects may be attained by means of the constructionillustrated in the accompanying drawing, in which Figure 1 is a sideelevation of a bolt and nut made in accordance with my invention. Fig. 2is a side elevation of the bolt, the nut being shown in section.

Referring to the drawing for a more particular description of myinvention, the numeral 1 designates a bolt which may be of the usual orany suitable construction provided with a head 2 and with a threaded end3. The nut 4 is provided with a bolt opening extending through the same,said bolt opening being rovided with interior screw threads 5 whicextend substantially half way through the bolt opening and the remainingportion of said bolt opening being plain or unthreaded as at 6, tofrictionally engage the body of the bolt 1.

By means of a nut made in accordance with my invention, the nut can beturned upon the bolt and when the smooth or plain interior wall 6 of thenut comes in contact with the plain portion of the bolt 1, the nut willbe held frictionally against turning off the bolt, as will be obvious.

From the foregoing it will be apparent that the cost of producing such anut is no greater, if as great, as the ordinary nut, and that the nut isfirmly locked upon the bolt at any point after the unthreaded ortioncomes in contact with the smooth b0 y of the bolt.

Having thus described the invention, what I claim is:

1. The combination with a bolt having a threaded portion and anunthreaded portion which lies between the threaded portlon and head ofthe bolt, the diameter of which unthreaded portion is equal to thegreatest diameter of the threaded portion; of a nut, the bore of whichcomprises an outer threaded portion to engage the corres ondin portionof the bolt and an inner unt leaded portion of a diameter equal to thelarger diameter of the nut threads and adapted to pass by the threads onthe bolt and frictionally bind upon the unthreaded portion of the bolt.

2. The combination of a bolt having a threaded portion and an unthreadedportion located between the threaded portion and the bolt head; and anut, the bore of which comprises an outer threaded ortion and an innerunthreaded portion at apted to fricpjiolnally engage the unthreadedportion of the In testimony whereof, I affix my signature in presence oftwo witnesses.

GEORGE HARDIN.

Witnesses PEARL SARBER, GEO. TREMPERT.

